Home / 4,005.80-6,008.74-1,408.72

Finding the Fourth Proportional to 4,005.80, 6,008.74 and 1,408.72

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Solution

The fourth proportional to 4,005.80, 6,008.74 and 1,408.72 is: 2,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,005.80 : 6,008.74 = 1,408.72 : x
  2. Step 2: Convert to fraction form
    4,005.80/6,008.74 = 1,408.72/x
  3. Step 3: Cross multiply
    4,005.80x = 6,008.74 × 1,408.72
  4. Step 4: Simplify right side
    4,005.80x = 8,464,632.21
  5. Step 5: Solve for x
    x = 8,464,632.21/4,005.80
  6. Step 6: Final answer
    x = 2,113.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.